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Internet system for sending news by e-mail
Horák, Michael ; Strašil, Ivo (referee) ; Pavelka, Ondřej (advisor)
The thesis deals with project lay-out and realization of the internet system dedicated to sending newsletters via e-mail. It especially aims at working with contacts and putting them in groups, editation of pre-prepared texts and sending the e-mails themselves. In the theoretical part, there’s described main traits of PHP language. There’s also described methods of creating the web forms, handing over their inputs and processing of that data. Next, there’s closer look on the PHP functions, especially for text processing, programming structures and conditions. Other functions, that can be found in this thesis described, are meant for sending the e-mails, creating hashs and managing sessions. In practical part, the problems are described generally. In the next part of a practical realization, this methods are looked closer upon and described more thoroughly. Also there’s defined how does the scripts work and which functions are used to make it work.
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Function generator
Húsek, Jan ; Mišurec, Jiří (referee) ; Káňa, Ladislav (advisor)
Bachelor`s thesis deals with design and realization of one possible solution of function generator with use of integrated circuit XR 2206. This function generator operates in frequency range 10Hz – 100kHz and it is designed to generate square, triangle and sine waveforms with variable duty and output amplitude to 10Vpp. Function generator contains inputs for amplitude and frequency modulation.
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Optimization of Small Electric Machines
Dvořák, Michal ; Vítek, Ondřej (referee) ; Hájek, Vítězslav (advisor)
Optimization algorithms are highly strong tool for solution of many problems of engeneering practice. They are usually used ,where the solution of given problem by analitics way is strongly unsuitable or unreal. For succesful solution such problems was developed a lot of highly strong algorithms, which alowed solwe dificult problems by efective way. In first part of this work I would like to introduce some optimization methods, their division and application. The next point will be introduction of two programs, which are plentifully used for optimization and each other cooperative together. These programs are ANSYS and MATLAB. In last part I will pay attention to optimization a small electrica machine, which is twelve volts automobile engine starter. On this engine starter I will apply three optimization algorithms and I would try to find corect value of field current for attainment maximum electromagnetic power.
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Various approaches to visualization of 2D and 3D objects in computer graphics
Polášek, Radek ; Kotásek, Miroslav (referee) ; Langerová, Petra (advisor)
Cílem této semestrální práce je rozšířit povědomí lidí v okruhu procesů, které jsou využívány moderními počítačovými programy, k vizualizaci 2D a 3D objektů. Postupně projdeme některé nejzákladnější definice a koncepty funkcí a jejich parametrů, které poté v následujících kapitolách této práce využijeme k vysvětlení pokročilejších procesů, které umožňují grafickou reprezentaci těchto funkcí v souřadnicových systémech. Poslední kapitola se pak zaobírá přímo příklady z konkrétního počítačového softwaru a tím, na co by uživatel měl brát zřetel aby dosáhl úspěšné grafické reprezentace funkcí.
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Design of urban clearing unit
Mahdal, Martin ; Pelikán, František (referee) ; Křenek, Ladislav (advisor)
The subject of graduation theses is design of urban cleaning unit. The machine belongs to the category of self-propelled work equipment. The primary purpose is the maintenance of areas of human settlements. The issue is examined in the existing products. Complete creative design is methodology developed and described. Output is ergonomic, composition, and graphic solution.
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The laser beam use in a production of parts for manipulating technique
Polák, Marek ; Kalivoda, Milan (referee) ; Osička, Karel (advisor)
This Diploma thesis trests of laser and his localisation in production sphere. It briefly describes principle, function and possibilities of laser, mainly laser technology by machining. It tafgets the possibilities of laser by cutting. The diploma thesis was elaborated in conjunction with the company Manex & Co, a. s., producer of handling systems. It disposes of CNC cutting machinery, which is fully engaged. A chain gear from ČSN 41 1363 was produced in terms of this diploma thesis.
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Mathematical Models of Production
Hanzlíček, Tomáš ; Půža, Bedřich (referee) ; Mezník, Ivan (advisor)
The thesis deals with the mathematical modelling of economic processes, particulary production. Basic approach, models and methods of modelling concerning the mentioned area are described. Further, specific characterizations are investigated. Application of selected methods to typical examples is presented. In the final part models on concrete data are constructed.
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Design and realization of D class audio amplifier controlled by microcontroller
Dobesch, Aleš ; Frýza, Tomáš (referee) ; Adamec, Filip (advisor)
The aim of the bachelor’s thesis is to design and construct D Class power amplifier of small proportions using modern integrated circuits. Implement a control software and measure parameters. Thesis describes principle of D Class power amplifiers, choosing suitable components and complete hardware device solution. Control unit is provided by microcontroller AVR ATmega164PA. This power amplifier is extended with radio remote control and effective box.
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